| タイトル | The first detection of a collapsed core globular cluster in M31 |
| 著者（英） | Federici, L.; Cacciari, C.; Zavatti, F.; Fusi Pecci, F.; Ferraro, F. R.; Djorgovski, S.; Parmeggiani, G.; Bendinelli, O.; Weir, N. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1993-05-20 |
| 言語 | eng |
| 内容記述 | We report on the observations of a globular cluster (designated G105 = Bo 343) in the nearby spiral galaxy M31, using the Hubble Space Telescope (HST). Image deconvolutions using three different methods indicate that this cluster has a density profile with the morphology characteristic of stellar systems which have undergone core collapse, i.e., a power-law density cusp near the center. This is the first such detection in a galaxy as distant as M31. This discovery may lead to extensive future statistical studies of the globular cluster system of M31, and thus a better understanding of its evolution. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 93A37816 |
| 権利 | Copyright |
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